4 files changed, 94 insertions, 3 deletions

diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
index 4a1db73b3669..b6ed6051ed3f 100644
--- a/drivers/gpu/drm/nouveau/Makefile
+++ b/drivers/gpu/drm/nouveau/Makefile
@@ -12,7 +12,7 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
              nouveau_dp.o \
              nv04_timer.o \
              nv04_mc.o nv40_mc.o nv50_mc.o \
-             nv04_fb.o nv10_fb.o nv40_fb.o nv50_fb.o \
+             nv04_fb.o nv10_fb.o nv30_fb.o nv40_fb.o nv50_fb.o \
              nv04_fifo.o nv10_fifo.o nv40_fifo.o nv50_fifo.o \
              nv04_graph.o nv10_graph.o nv20_graph.o \
              nv40_graph.o nv50_graph.o \
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 6b24186a103f..9f4b8f2e2ec8 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -896,6 +896,10 @@ extern void nv10_fb_takedown(struct drm_device *);
 extern void nv10_fb_set_region_tiling(struct drm_device *, int, uint32_t,
                                       uint32_t, uint32_t);
 
+/* nv30_fb.c */
+extern int  nv30_fb_init(struct drm_device *);
+extern void nv30_fb_takedown(struct drm_device *);
+
 /* nv40_fb.c */
 extern int  nv40_fb_init(struct drm_device *);
 extern void nv40_fb_takedown(struct drm_device *);
diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
index 0bf79bf8e61a..8d59c904b045 100644
--- a/drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -184,8 +184,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
                 engine->timer.init              = nv04_timer_init;
                 engine->timer.read              = nv04_timer_read;
                 engine->timer.takedown          = nv04_timer_takedown;
-                engine->fb.init                 = nv10_fb_init;
-                engine->fb.takedown             = nv10_fb_takedown;
+                engine->fb.init                 = nv30_fb_init;
+                engine->fb.takedown             = nv30_fb_takedown;
                 engine->fb.set_region_tiling    = nv10_fb_set_region_tiling;
                 engine->graph.grclass           = nv30_graph_grclass;
                 engine->graph.init              = nv30_graph_init;
diff --git a/drivers/gpu/drm/nouveau/nv30_fb.c b/drivers/gpu/drm/nouveau/nv30_fb.c
new file mode 100644
index 000000000000..9d35c8b3b839
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nv30_fb.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright (C) 2010 Francisco Jerez.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include "drmP.h"
+#include "drm.h"
+#include "nouveau_drv.h"
+#include "nouveau_drm.h"
+
+static int
+calc_ref(int b, int l, int i)
+{
+        int j, x = 0;
+
+        for (j = 0; j < 4; j++) {
+                int n = (b >> (8 * j) & 0xf);
+                int m = (l >> (8 * i) & 0xff) + 2 * (n & 0x8 ? n - 0x10 : n);
+
+                x |= (0x80 | (m & 0x1f)) << (8 * j);
+        }
+
+        return x;
+}
+
+int
+nv30_fb_init(struct drm_device *dev)
+{
+        struct drm_nouveau_private *dev_priv = dev->dev_private;
+        struct nouveau_fb_engine *pfb = &dev_priv->engine.fb;
+        int i, j;
+
+        pfb->num_tiles = NV10_PFB_TILE__SIZE;
+
+        /* Turn all the tiling regions off. */
+        for (i = 0; i < pfb->num_tiles; i++)
+                pfb->set_region_tiling(dev, i, 0, 0, 0);
+
+        /* Init the memory timing regs at 0x10037c/0x1003ac */
+        if (dev_priv->chipset == 0x30 ||
+            dev_priv->chipset == 0x31 ||
+            dev_priv->chipset == 0x35) {
+                /* Related to ROP count */
+                int n = (dev_priv->chipset == 0x31 ? 2 : 4);
+                int b = (dev_priv->chipset > 0x30 ?
+                         nv_rd32(dev, 0x122c) & 0xf : 0);
+                int l = nv_rd32(dev, 0x1003d0);
+
+                for (i = 0; i < n; i++) {
+                        for (j = 0; j < 3; j++)
+                                nv_wr32(dev, 0x10037c + 0xc * i + 0x4 * j,
+                                        calc_ref(b, l, j));
+
+                        for (j = 0; j < 2; j++)
+                                nv_wr32(dev, 0x1003ac + 0x8 * i + 0x4 * j,
+                                        calc_ref(b, l, j));
+                }
+        }
+
+        return 0;
+}
+
+void
+nv30_fb_takedown(struct drm_device *dev)
+{
+}